Supersedes Technical Service Bulletin Group 90 number 12-35 dated October 1, 2012. Customer complains that when the vehicle is driven, various warning lights illuminate, sometimes with restricted functions in the electrical system. The complaint occurs with another complaint regarding the MMI 3G+ infotainment system. After an ignition cycle, the condition is gone and therefore, it may not be reproducible. Sporadic DTCs may be present for communication errors, restricted functions, or missing/incorrect messages.
